Badcaps.net Forum
Go Back   Badcaps Forums > Troubleshooting Hardware & Devices and Electronics Theory > Troubleshooting Laptops, Portable, and Mobile Devices
Register FAQ Calendar Search Today's Posts Mark Forums Read

 
Thread Tools Display Modes
Old 02-03-2019, 06:42 AM   #1
alihomee
Badcaps Veteran
 
Join Date: Dec 2012
City & State: kuala lampur
My Country: pakistan
I'm a: Knowledge Seeker
Posts: 1,029
Default Macbook air 13inch a1466 emc2632

Display comes like this as shown in pic......tested with another working screen but same any ideas from where to start....motherboard is clean no waterdamage
Attached Images
File Type: jpg 20190131_211350.jpg (1.02 MB, 26 views)
alihomee is offline   Reply With Quote
Old 02-03-2019, 01:08 PM   #2
Gimi
Member
 
Join Date: Aug 2015
City & State: Sheffield
My Country: UK
I'm a: Hobbyist Tech
Posts: 58
Default Re: Macbook air 13inch a1466 emc2632

Check cpu voltage. if 0v then your cpu can have a short
Gimi is offline   Reply With Quote
Old 02-03-2019, 01:17 PM   #3
mosfetratus
Sure Not
 
Join Date: Feb 2019
City & State: CapCity
My Country: Resistron
I'm a: Knowledge Seeker
Posts: 62
Default Re: Macbook air 13inch a1466 emc2632

Do you hear macbook jingle? Even without a screen, you should hear a boot sound.
mosfetratus is offline   Reply With Quote
Old 02-03-2019, 11:27 PM   #4
alihomee
Badcaps Veteran
 
Join Date: Dec 2012
City & State: kuala lampur
My Country: pakistan
I'm a: Knowledge Seeker
Posts: 1,029
Default Re: Macbook air 13inch a1466 emc2632

no sound nothing
alihomee is offline   Reply With Quote
Old 02-03-2019, 11:49 PM   #5
mosfetratus
Sure Not
 
Join Date: Feb 2019
City & State: CapCity
My Country: Resistron
I'm a: Knowledge Seeker
Posts: 62
Default Re: Macbook air 13inch a1466 emc2632

faulty RAM?

If you had hardware error with OK ram, you should hear beeping codes.

No chime, no beep. I think simple RAM reflow could fix that. But don't jump into my conclusion.
mosfetratus is offline   Reply With Quote
Old 02-04-2019, 02:32 AM   #6
alihomee
Badcaps Veteran
 
Join Date: Dec 2012
City & State: kuala lampur
My Country: pakistan
I'm a: Knowledge Seeker
Posts: 1,029
Default Re: Macbook air 13inch a1466 emc2632

i did try that by reflow ram chips but no luck
alihomee is offline   Reply With Quote
Old 02-04-2019, 02:53 AM   #7
piernov
Moderator
 
Join Date: Jan 2016
City & State: Valbonne, 06
My Country: France
I'm a: Knowledge Seeker
Posts: 1,677
Default Re: Macbook air 13inch a1466 emc2632

PRAM reset done? Display OK on external (with internal disconnected)?
__________________
OpenBoardview http://openboardview.org | IRC #openboardview@irc.freenode.net
piernov is offline   Reply With Quote
Old 02-04-2019, 07:17 AM   #8
alihomee
Badcaps Veteran
 
Join Date: Dec 2012
City & State: kuala lampur
My Country: pakistan
I'm a: Knowledge Seeker
Posts: 1,029
Default Re: Macbook air 13inch a1466 emc2632

yes but still same
alihomee is offline   Reply With Quote
Old 02-04-2019, 04:37 PM   #9
Akinovich
New Member
 
Join Date: Aug 2017
City & State: Noord-Holland
My Country: The Netherlands
I'm a: Knowledge Seeker
Posts: 8
Default Re: Macbook air 13inch a1466 emc2632

USB mouse light up?
CPUVCORE voltage?
Akinovich is offline   Reply With Quote
Old 02-06-2019, 07:40 AM   #10
alihomee
Badcaps Veteran
 
Join Date: Dec 2012
City & State: kuala lampur
My Country: pakistan
I'm a: Knowledge Seeker
Posts: 1,029
Default Re: Macbook air 13inch a1466 emc2632

yes if connect external ssd with usb it lights up but no communication ...i mean usually when mobo reads it the light blinks but in this cause no blink
alihomee is offline   Reply With Quote
Old 02-06-2019, 07:41 AM   #11
alihomee
Badcaps Veteran
 
Join Date: Dec 2012
City & State: kuala lampur
My Country: pakistan
I'm a: Knowledge Seeker
Posts: 1,029
Default Re: Macbook air 13inch a1466 emc2632

vcore is good and cpu also gets hot
alihomee is offline   Reply With Quote
Old 02-06-2019, 11:50 AM   #12
Akinovich
New Member
 
Join Date: Aug 2017
City & State: Noord-Holland
My Country: The Netherlands
I'm a: Knowledge Seeker
Posts: 8
Default Re: Macbook air 13inch a1466 emc2632

Interesting never seen this before. You have no chime so I would check around U1950 and check around the bios. Measure pins of bios in diode mode. Spi rom resistors traces and bad bios are usually the cases for me in with these weird problems
Akinovich is offline   Reply With Quote
Old 02-13-2019, 06:27 AM   #13
alihomee
Badcaps Veteran
 
Join Date: Dec 2012
City & State: kuala lampur
My Country: pakistan
I'm a: Knowledge Seeker
Posts: 1,029
Default Re: Macbook air 13inch a1466 emc2632

tried with a working bios file but still same condition
alihomee is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump



Badcaps.net Technical Forums 2003 - 2019
Powered by vBulletin ®
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
All times are GMT -6. The time now is 09:59 AM.
Did you find this forum helpful?